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Effect of Aging in the Structure of Silica Xerogels with Incorporation of Extract’s Leaves

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DOI: 10.4236/njgc.2011.11002    4,846 Downloads   8,915 Views   Citations

ABSTRACT

The spectral fluorescence characteristics of extracts leaves embedded in silica xerogel matrix promoted by aged time was studied. We obtain a higher PSII stability for extract of leaves embedded in xerogel matrix, with concentration of 8 g / 20 ml and water to TEOS molar ratio of 11, which remain bioactive over a very long period of time, whereas for a water to TEOS molar ratio of 5 a blue-shift fluorescence is observed indicating the PSII denaturizing and formation of fluorescing aggregates associated with the activation of carotenoids radicals.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

J. Martínez, E. Espericueta and G. Ortega-Zarzosa, "Effect of Aging in the Structure of Silica Xerogels with Incorporation of Extract’s Leaves," New Journal of Glass and Ceramics, Vol. 1 No. 1, 2011, pp. 7-12. doi: 10.4236/njgc.2011.11002.

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